#! /usr/bin/env python
# -*- coding: utf-8 -*-

# Copyright (c) JoinQuant Development Team
# Author: Huayong Kuang <kuanghuayong@joinquant.com>

from __future__ import print_function

class A(object):

    def __init__(self):
        print("init A")


class B(object):

    def __init__(self):
        print("init b")

    def __del__(self):
        print("destroy B")


class O(A, B):

    pass


o = O()
